Ara es mostren els items 39775-39794 de 90077

  • FaTLease: scalable fault-tolerant lease negotiation with Paxos 

    Hupfeld, Felix; Kolbeck, Björn; Stender, Jan; Högqovist, Mikael; Cortés, Toni; Marti, Jonathan; Malo, Jesús (2008-06)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A lease is a token which grants its owner exclusive access to a resource for a defined span of time. In order to be able to tolerate failures, leases need to be coordinated by distributed processes. We present FaTLease, ...
  • Fatores de incentivo à servitização através da integração do serviço ao cliente no processo de desenvolvimento de produtos 

    Azpiazu Auguet, Alejandra (Universitat Politècnica de Catalunya / Universidade Federal do Rio Grande do Sul, 2014)
    Treball Final de Grau
    Accés obert
    Realitzat a/amb:  Universidade Federal do Rio Grande do Sul
    O Desenvolvimento de Produto (DP) ganhou o posto de processo contínuo dentro das organizações em função do baixo ciclo de vida dos produtos no mercado. Este processo é realizado por times multidisciplinares, mas a área de ...
  • Fatty oil hydrogenation in supercritical solvents: process design and safety issues 

    Ramírez Rangel, Eliana; Mayorga Cárdenas, Miguel Yuri; Cuevas, Daniel; Recasens Baxarías, Francisco Javier (2011-03-02)
    Article
    Accés restringit per política de l'editorial
    A simulation study of a SCF process is carried out using Aspen™ with previously available catalytic kinetics for the simulation of the reactor. Two supported catalysts were considered: a standard Pd/carbon, and an egg-shell ...
  • Fault detection and automatic supervision methodology for PV systems 

    Silvestre Bergés, Santiago; Chouder, Aissa (2010)
    Text en actes de congrés
    Accés obert
    In this work, we show a new methodology for automatic supervision and fault detection of PV Systems, based mainly on the analysis of the power losses. This methodology includes parameter extraction techniques to calculate ...
  • Fault detection and isolation based on the combination of a bank of interval observers and invariant sets 

    Xu, Feng; Stoican, Florin; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Olaru, Sorin (2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this paper, a fault detection and isolation (FDI) approach using a bank of interval observers is developed. From the methodological point of view, a bank of interval observers is designed according to different dynamical ...
  • Fault detection and isolation for a wind turbine benchmark using a mixed Bayesian/set-membership approach 

    Fernández Canti, Rosa M.; Blesa Izquierdo, Joaquim; Tornil Sin, Sebastián; Puig Cayuela, Vicenç (2015-10-30)
    Article
    Accés obert
    This paper addresses the problem of fault detection and isolation of wind turbines using a mixed Bayesian/Set-membership approach. Modeling errors are assumed to be unknown but bounded, following the set-membership approach. ...
  • Fault detection and isolation in critical infrastructure systems 

    Puig Cayuela, Vicenç; Escobet Canal, Teresa; Sarrate Estruch, Ramon; Quevedo Casín, Joseba Jokin (2014)
    Text en actes de congrés
    Accés obert
    Critical infrastructure systems (CIS) are complex large-scale systems which in turn require highly sophisticated supervisory control systems to ensure that high performance can be achieved and maintained under adverse ...
  • Fault detection and isolation of a real PEM fuel cell using interval LPV observers 

    Lira Ramírez, Salvador de; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin (IFAC, 2012)
    Text en actes de congrés
    Accés restringit per decisió de l'autor
    The purpose of this paper is to design a Fault Detection and Isolation (FDI) system based on interval LPV observers with application to a real fuel cell. The interval LPV observer is used to generate an adaptive threshold ...
  • Fault detection and isolation of a real wind turbine using LPV observers 

    Negre, Pep Lluís; Puig Cayuela, Vicenç; Pineda, Isaac (2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The purpose of this paper is to design a Fault Detection and Isolation (FDI) system based on LPV observers with application to a real wind turbine. The LPV observer is used to generate an adaptive threshold to enhance the ...
  • Fault detection and isolation of hybrid systems using diagnosers that reason on components 

    Vento Maldonado, Jorge; Puig Cayuela, Vicenç; Sarrate Estruch, Ramon; Travé-Massuyés, Louise (2012)
    Text en actes de congrés
    Accés restringit per decisió de l'autor
    In this paper, a design methodology and implementation architecure for diagnosers in the framework of hybrid systems is proposed. The design methodo logy is based on the hybrid automata model that represents the system ...
  • Fault detection and isolation of inland navigation channel: application to the Cuinchy-Fontinettes reach 

    Duviella, Eric; Rajaoarisoa, Lala H.; Blesa Izquierdo, Joaquim; Chuquet, Karine (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés obert
    Inland navigation networks are mainly used for transport with economic and environmental benefits. In a climate change context which leads to the scarcity of the water resource, the control of navigation levels and the ...
  • Fault Detection and Isolation of Wind Turbines - A Real Field Data Approach 

    Negre Carrasco, Pep Llu ís (Universitat Politècnica de Catalunya, 2010-09)
    Projecte Final de Màster Oficial
    Accés obert
    The future of wind energy passes through the installation of o shore wind farms. In such locations a non-planned maintenance is highly costly, therefore, a fault-tolerant control system that is able to maintain the ...
  • Fault Detection and Isolation of Wind Turbines: Application to a Real Case Study 

    Negre, Pep Lluís; Puig Cayuela, Vicenç; Pineda, Isaac (2010)
    Text en actes de congrés
    Accés obert
  • Fault detection and isolation using viability theory and interval observers 

    Ghaniee Zarch, Majid; Puig Cayuela, Vicenç; Poshtan, Javad (2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper proposes the use of interval observers and viability theory in fault detection and isolation (FDI). Viability theory develops mathematical and algorithmic methods for investigating the adaptation to ...
  • Fault detection by means of Hilbert-Huang transform of the stator current in a PMSM with demagnetization 

    García Espinosa, Antonio; Rosero García, Javier Alveiro; Cusido Roura, Jordi; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio (2010-06)
    Article
    Accés obert
    This paper presents a novel method to diagnose demagnetization in permanent-magnet synchronousmotor (PMSM). Simulations have been performed by 2-D finite-element analysis in order to determine the current spectrum and ...
  • Fault detection in base-isolation systems via a restoring force observer 

    Vidal Seguí, Yolanda; Acho Zuppa, Leonardo; Pozo Montero, Francesc; Rodellar Benedé, José (2010)
    Text en actes de congrés
    Accés obert
    This paper proposes a fault detection method for hysteretic base-isolation systems. One of the key contributions of this work is a Lyapunov-based restoring force observer that leads to the design of a robust fault detection ...
  • Fault detection in dynamic conditions by means of discrete wavelet decomposition for PMSM running under bearing damage 

    Rosero García, Javier Alveiro; Romeral Martínez, José Luis; Rosero, Esteban; Urresty Betancourt, Julio César (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Text en actes de congrés
    Accés obert
    This paper presents a study of the Permanent Magnet Synchronous Machine (PMSM) running under bearing damage. To carry out the study a two-dimensional (2-D) Finite Element Analysis (FEA) is used. Stator current induced ...
  • Fault detection in hysteretic base-isolation systems via a seismic disturbance observer 

    Rodriguez Tsouroukdissian, Arturo; Vidal Seguí, Yolanda; Acho Zuppa, Leonardo; Pozo Montero, Francesc (2010)
    Comunicació de congrés
    Accés obert
  • Fault detection in structures (wind turbine) through statistical techniques, singular spectrum analysis (SSA) and frequency-based methods 

    Verdezoto Pereira, Victor (Universitat Politècnica de Catalunya, 2016-09-05)
    Projecte Final de Màster Oficial
    Accés obert
    This master thesis aims to demonstrate the effectiveness of a fault detection strategy in the structure of the wind turbine through a new strategy involving singular spectrum analysis (SSA), statistical methods and methods ...
  • Fault detection in wind turbines using PCA and statistical hypothesis testing 

    Serrahima de Cambra, Josep Mª (Universitat Politècnica de Catalunya, 2016-06-08)
    Treball Final de Grau
    Accés obert
    L’augment de la mida dels aerogeneradors per la generació d’electricitat i la seva construcció en llocs remots per maximitzar la producció suposa un augment en costos de manteniment i operació. Per tal de reduir aquests ...